Sponges

Front 1

spicules

Back 1

one of the minute calcareous or siliceous skeletal bodies found in sponges

Front 2

spongin

Back 2

fibrous, collagenous material making up the network of horny sponges

Front 3

ostia

Back 3

opening for incoming water

Front 4

oscula

Back 4

large pores for incoming water

Front 5

choanoctytes

Back 5

flagellated collar cells

Front 6

dermal ostia

Back 6

tiny incurrent pores

Front 7

spongocoel

Back 7

large cavity where water enters through microscopic dermal pores

Front 8

radial canals

Back 8

canals along the ambulacra

Front 9

incurrent canals

Back 9

where water enters from the dremal ostia

Front 10

prosopyles

Back 10

tiny openings

Front 11

apo-pyles

Back 11

internal pores

Front 12

mesohyl

Back 12

lose gelatinous matrix sponges form

Front 13

pinacocyte

Back 13

a type of cells in a sponge

Front 14

pinacoderm

Back 14

arrangement of cells

Front 15

myocytes

Back 15

modified pina-cocytes

Front 16

sclerocytes

Back 16

specialized cells in a sponge

Front 17

spongocytes

Back 17

cells that secrete spongin fibers

Front 18

collencytes

Back 18

cells that secrete fibrillar collagen

Front 19

lopyocytes

Back 19

cells that secrete quantities of collagen

Front 20

intracellular

Back 20

occurring within cells

Front 21

asexual reproduction

Back 21

single organism reproduction by means of bud formation and regeneration following fragmentation

Front 22

external buds

Back 22

buds on the outside

Front 23

internal buds (gemmules)

Back 23

buds on the inside formed in freshwater sponges

Front 24

micropyle

Back 24

a special opening through which gemmules escape

Front 25

sexual reproduction

Back 25

production through male and female cells

Front 26

monoecious

Back 26

containing both male and female sex cells in an individual

Front 27

parenchymula

Back 27

a spongy mass of cells filling space

Front 28

amphiblastula

Back 28

a hollow blastula

Front 29

inversion

Back 29

inside out

Front 30

micromeres

Back 30

flagellated cells

Front 31

macromeres

Back 31

nonflagellated cells

Front 32

regeneration

Back 32

ability to repair injuries and restore lost parts

Front 33

somatic embryogenesis

Back 33

regeneration of a sponge after it's been cut off

Front 34

trabecular net

Back 34

network of living tissue

Front 35

class calcarea

Back 35

have spicules of calcium

Front 36

class hexactinellida

Back 36

have 6 rayed siliceous spicules

Front 37

class demospongiae

Back 37

have siliceous spicules that are not 6 rayed